Sample size, n | 1097 |
---|---|
Patient-related | |
Failed regional anesthesia | 303 (27.6) |
Patient unable to tolerate MAC | 283 (25.8) |
Hypoxia/obstruction | 150 (13.7) |
Aspiration | 63 (5.7) |
Unknown | 54 (4.9) |
Hemodynamic instability | 38 (3.5) |
Othera | 24 (2.2) |
Procedure-related | |
Open or another unplanned procedure or surgical extension of area | 92 (8.4) |
Surgical request | 47 (4.3) |
Bleeding | 22 (2.0) |
Extended surgical time | 21 (1.9) |